The trade market got busy ahead of Tuesday’s deadline, with the New York Yankees acquiring pitcher Frankie Montas from Oakland for four prospects. As contenders bulked up ahead of stretch runs and possible postseason appearances, San Diego got All-Star closer Josh Hader from first-place Milwaukee on Monday, and Houston obtained designated hitter/first baseman Trey Mancini from Baltimore as part of a three-team trade that included Tampa Bay. The AL West leaders also added catcher Christian Vazquez from Boston, which in turn acquired outfielder Tommy Pham from Cincinnati.
